#include<bits/stdc++.h>
using namespace std;
int main(){
	freopen("fruit.in","r",stdin);
	freopen("fruit.out","w",stdout);
	int a;cin>>a;
	int o[1222222];
	for(int i=1;i<=a;i++) cin>>o[i];
	cout<<-1;
	return 0;
}
